Chen, S., Yen, C., Tsao, S., Huang, C., Chen, C., Lee, M. and Bell, W. 2005. Comparison of pyogenic liver abscesses with biliary and cryptogenic origin. Swiss Medical Weekly. 135, 2324 (Jun. 2005), 344–344. DOI:https://doi.org/10.4414/smw.2005.10977.